baber/WOPTO huggingface dataset:
Patent GB-1049037-A (GB)
Title: Improvements in or relating to travelling-wave tubes with helical delay lines
IPC: H01J23/26
Filed: 1964-08-04
Abstract: 1,049,037. Travelling wave tubes. SIEMENS & HALSKE A.G. Aug. 4, 1964 [July 31, 1963], No. 31119/64. Heading H1D. A travelling-wave tube has a tubular envelope 1 and a helical delay line 2 within the envelope, the delay line being supported by metal rodshaped supports 3 which extend from the delay line through the wall of the envelope. As shown, the metal supports are sealed through insulating members 5 to the metal envelope 1 and are provided with cooling discs or plates 6 on their ends outside the envelope, the discs being screwed on to the pins so that the distance of the discs from the envelope can be varied. The envelope may be provided with two external longitudinally extending flanges between which project the supports, thus forming a cooling channel through which a coolant, e.g. compressed air, may flow. The envelope may be of dielectric material, inserted into a metal tube or metallized with, e.g., silver, Fig. 5 (not shown). In a further embodiment, Fig. 6 (not shown), the envelope is composed of alternate rings of metal and dielectric, each metal ring being fastened to a helix supporting pin, and all the metal rings being conductively connected at points diametrically opposite to the metal pins.
Patent GB-1280001-A (GB)
Title: Process for preparing amylitol
IPC: C12R1/38
Filed: 1969-06-19
Abstract: 1280001 Preparing amylitol HAYASHIBARA CO 19 June 1969 [19 June 1968] 31139/69 Heading C3U A process for preparing amylitol comprises dissolving in water, by heating, amylose obtained from amylopectin of a starch by treating the amylopectin with an α-1,6-glucosidase to cause selective hydrolysis of the α-1,6-glucoside bonds of the amylopectin, adding a nickel catalyst to the aqueous amylose solution, and then effecting reduction of the amylose by the introduction of hydrogen at a temperature of not more than 100‹ C. and at a pressure of up to 100 kg./cm.<SP>2</SP>.
Patent GB-636084-A (GB)
Title: Improvements in and relating to runners of hydraulic turbines
IPC: B23P6/00
Filed: 1947-11-25
Abstract: 636,084. Making turbines and composite turbine blades. ENGLISH ELECTRIC CO., Ltd., and DERIAZ, P. Nov. 25, 1947, No. 31181. [Class 83 (ii)] [Also in Group XXVI] Blades for hydraulic turbine runners are made by cutting a flat plate of mild steel to the shape required for the blade, applying a deposit of stainless steel by electric welding so as to protect it against erosion, machining and/or grinding the composite plate to a smooth surface finish and accurate thickness and then bending the composite flat plate to the required shape of the blade. The runner may be made by assembling the completed blades in required position and integrating them by casting the hubs and shroud rings on their edges or by welding thereto separately made hubs and shroud rings. The blade may be coated only at the mainly endangered region as at 7, the flat plate being previously recessed by milling or grinding to receive the deposited metal, and the machining or grinding limited to the region of the deposit to make it flush with the rest of the plate. The flat plates may be given a streamlined profile after applying the deposit by taking material mainly off the opposite surface.
Patent GB-385074-A (GB)
Title: Improvements in or relating to variable pitch propellors
IPC: B64C11/34
Filed: 1931-11-11
Abstract: 385,074. Screw propellers. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and LOBELLE, M. J. O., Scalesclugh, Langley Road, Slough, Bucking- hamshire. Nov. 11, 1931, No. 31246. [Class 114.] In varying the pitch of screw-propeller blades below a predetermined speed the blade is secured to the hub by a tension member which is weak torsionally, the outer end of the weak member being secured to a differential screw sleeve in the blade root. The blade 10 has a recess into which is screwed a sleeve 24 that has an inner screw of different pitch, the inner end of the sleeve 24 has a number of teeth adapted to be engaged by end teeth on a sleeve 27 secured by a flange to the base of the propeller root. A cylindrical member 22 is slotted so as to be weak torsionally and at its inner end is secured by a pin to the socket 23 on the propeller boss. At its outer end it is screwed into the block 24 and carries radial teeth engaged by corresponding teeth on a sleeve 25 also secured at 26 to the blade root. The outer stiffening member 12 of the blade root is held on to the blade proper by a coned nut 12a and carries a flange 15 which is adapted when the propeller blade moves outwardly under centrifugal force to abut against an internal distance nut 16 on the hub socket 14. The blade root carries a block which is connected by links passing through an opening 19 in the hub socket to the pitch controlling gear. At low propeller speeds the flange 15 is clear of its abutment 16 and the blade can then be given a pitch adjustment by overcoming the torsion of the sleeve 22. At higher speeds the flange 15 bears on its abutment 16 and brings into play a frictional resistance to any effort to alter the pitch. The bolts 26 used for securing the sleeves 25 and 27 are unequally spaced so as to provide a varying adjustment.
Patent GB-1294496-A (GB)
Title: Hydraulic pressure casting machine
IPC: B22D17/10
Filed: 1970-06-29
Abstract: 1294496 Casting machines WOTANWERKE GmbH 29 June 1970 [15 April 1970] 31296/70 Addition to 1268006 Heading B3F [Also in Division F1] An hydraulic intensifier for increasing the hydraulic pressure in the working space 43 on one side of a moulding piston 42 near the end of its stroke comprises a stepped piston 52 which when fluid pressure is supplied through a line 55 and valve 54 to the larger face 53 thereof serves to seat at 64 a shoulder 56 of stepped piston portion 52b against a sleeve 62 and thus cuts off the low pressure supply through lines 46, 47 to the space 43; the pressure therein being intensified whilst pressure in an annular chamber 58 of the intensifier cylinder being connected to atmosphere.
Patent GB-887884-A (GB)
Title: Condenser pressure regulating system
IPC: F25B49/02
Filed: 1960-09-12
Abstract: 887,884. Refrigerating. ALCO VALVE CO. Sept. 12, 1960 [Oct. 1, 1959], No. 31309/60. Class 29. A refrigerating system having a compressor 10, a condenser 11, an expansion device 13 and an evaporator 14 piped in series, comprises control means for sensing the pressure drop between a point downstream of the compressor and upstream of the expansion device and a point downstream of the expansion device, but upstream of the compressor, and valve means 15 operated by the sensing means for regulating the flow of refrigerant through the condenser 11 in proportion to that of the pressure drop. A pipe 16 connects the compressor 10 to the highpressure input side of the valve means 15. A pipe 17 connects from one outlet 18 of the valve to the condenser 11 and a pipe 19 connects from another outlet 20 of the valve to a pipe 21 which connects the condenser 11 to a receiver 12. The valve 15 comprises a double faced piston 25 adapted to alternately close on opposed valve seats 26, 27. An imperforate cup 28 is connected to one end of the piston 25. This end of the piston is also connected by a pipe 30 to the lowpressure side of the system. A compression spring 29 tends to bias the piston 25 against the condenser seat 26. In operation of the system, the compressor 10 feeds the refrigerant at high pressure towards the valve 15. If the temperature in the condenser 11 is sufficiently high the pressure in the pipe 17 will be higher than the forces of the spring 29 and the low pressure in the pipe 30. This will cause the piston to seat up on the by-pass seat 27, closing the by-pass line 19 so that all the refrigerant will pass through the pipe 17 to the condenser. If the temperature of the condenser is very low its pressure will be very low. If the pressure in the pipe 17 is less than the pressures of the spring 29 and the pipe 30 the piston 25 will move towards, the seat 26 and refrigerant will flow through the by-pass line 19 and not pass through the condenser 10. All positions of the valve between the condenser and the by-pass seats 26, 27 are possible and the valve will modulate until it reaches a condition of pressure balance so that there will be flow both through the condensor and through the by-pass line 19.
Patent GB-747697-A (GB)
Title: Improvements in electric circuit controllers
Inventor: GIMSON CYRIL FREDERICK
IPC: H01H19/62
Filed: 1953-11-12
Abstract: 747,697. Controllers; switches held set and freed mechanically. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 8, 1954 [Nov. 12, 19531. No. 31400/53. Classes 38(3) and 38(5) A cam-shaft controller comprises a cap plate 1 provided with a bracket 1a adapted to be mounted on a vertical surface, a top frame 18 being secured to the cap plate and fitted with a bearing for locating one end of a vertical cam-shaft 2. The top frame supports the upper ends of a number of vertical rods 3, 16, the opposite ends of these rods being secured to a bottom support frame 17 with a bearing for the lower end of the cam-shaft. A number of terminal bases 4 are axially displaced along pairs of rods 3, and each has a pair of terminal posts and a screw for securing a contact-carrying unit 6 which is carried on a rod 16 by means of screw 6a. Each of the units 6 has plungers 7 which are spring-biased towards the terminal, posts so that a contact-carrying unit may be readily removed and replaced without disturbing the connections on the unit terminal base. The opposite ends of the plungers have tips 14 adapted to engage moving contact 15 which is mounted on arm 10 pivoted at 10a. A roller 9 on the arm engages a cam on shaft 2. A bottom cover plate 12 is secured to frame 17 and two semi-cylindrical covers 11 are held in position by grooves in the plates 1 and 12. A screw 13 may be loosened slightly to enable the covers 11 to be removed.
Patent GB-934407-A (GB)
Title: Resinous condensation products of mono-epoxy compounds and aromatic carboxylic anhydrides
IPC: C08G65/26
Filed: 1959-09-16
Abstract: Resinous products are made by reacting trimellitic anhydride with a mono-epoxide compound at about 12 DEG -200 DEG C. and in the presence of an alkaline catalyst.  The products are normally soluble in conventional solvents, e.g. acetone, methyl ethyl ketone, chloroform and mixtures of xylene and butanol.  Specified epoxides are ethylene-, propylene- and styrene-oxide; epichlorhydrin; glycidyl ethers such as glycidyl allyl ether; glycidyl esters of aliphatic carboxylic acids such as glycidyl methacrylate; and mixtures of ethylene oxide or propylene oxide and glycidyl methacrylate. Specified catalysts are alkali hydroxides, calcium oxide, sodium amide, diethylamine, dibutylamine, piperidine, trimethylamine, triethanolamine and pyridine.  When using 1,5-5 moles of epoxide per mol. of trimellitic anhydride, products suitable as baking lacquers result, and these products may be used in admixture with phenol-, urea- or melamine-formaldehyde resins, polyesters, polyamides, polyurethanes, polyacrylic acid and polyvinyl alcohol.  When using 0,5-1,5 moles of epoxide per mol. of trimellitic anhydride, products of high acid number result which may be esterified with alkanols having 1-8 carbon atoms to make solvents or plasticizers for synthetic resins, e.g. polyvinyl chloride.  When using 5-10 moles of epoxide per mol. of trimellitic anhydride, products of high hydroxyl number result which may be (a) esterified with lower aliphatic monocarboxylic acids to provide plasticizers or solvents; (b) reacted with adipic acid, or sebacic acid to provide resins suitable as protective coatings; (c) reacted with unsaturated fatty acids (e.g. linoleic acid) to provide drying resins; or (d) reacted with diisocyanates, polyepoxides, epoxidized acids or epoxidized esters to provide thermosetting resinous compositions.  The products of the invention may also be used as components in alkyd resin compositions or used to replace part of the phthalic anhydride or glycerol in the manufacture of alkyd resins.  Specification 518,057 is referred to.
Patent GB-274708-A (GB)
Title: Cap for the attachment of teeth
IPC: A61C13/10
Filed: 1926-12-13
Abstract: 274,708. Beisler, J. Dec. 13, 1926. Teeth, artificial. - The facing and body member a, b of an artificial tooth are secured together by caps c embedded in the body member fitting over headed pins d projecting from the facing. The caps are tapered towards the front, so that they cannot be withdrawn, and are preferably rounded as shown.
Patent GB-1532295-A (GB)
Title: Process for the removal of metals from organic solutions
IPC: C10G25/05
Filed: 1976-07-29
Abstract: 1532295 Modified inorganic solids BRITISH PETROLEUM CO Ltd 27 July 1977 [29 July 1976] 31636/76 Heading CIA A product which can be used to extract certain metals from organic solutions is obtained by reacting firstly with either an inorganic solid compound containing surface hydroxyl groups or with an aromatic aldehyde compound and then the other of the two groups of compounds. Exemplified solids are alumina, titania, zirconia, glass, sepiolite or zeolites and particularly exemplified is silica.
Patent GB-1021312-A (GB)
Title: Means for controlling the intensity of radiation incident upon a surface, or the intensity of radiation emanating from a surface
IPC: E04H15/20
Filed: 1962-08-17
Abstract: 1,021,312. Screens. N. LAING. Aug. 17, 1962 [Aug. 18, 1961], No. 31677/62. Heading E1J. [Also in Divisions A3 and A5] Means for controlling the intensity of radiation incident upon a surface 7 or the intensity of radiation emanating from a surface 7 comprises a series of movable or deformable control elements 4, 4<SP>1</SP> secured to said surface and each having at least a portion effective to reflect, attenuate or intercept the radiation and means for moving or deforming the elements so as to vary the degree to which said portion intercepts the radiation. As shown longitudinal elements 4, 4<SP>1</SP> are of deformable material each of which has a portion effective to reflect, attenuate or interrupt the radiation and each is secured to the surface 7 along a longitudinal portion 3 for deformation relative to the surface 7. The control elements may be operated to lie parallel to the surface 7 by pneumatic or hydraulic means in which case the elements 4 are carried on foils 2 secured to the surface 7 to form a series of tubes or channels 6 which may be inflated or deflated etc. as required so that the foils 2 collapses and the elements 4 lie on the surface 1, Fig. 1b or the control elements may be operated by magnetic or electrostatic means by providing the element 4, 4<SP>1</SP> as one electrode and providing a further electrode suitably placed in relation to elements 4, 4<SP>1</SP> and applying appropriate direction of voltage or current to produce the desired force (Fig. 13, not shown). Further effects on the radiation may be produced by filling the tubes 6, e.g. with smoke or other absorption medium. The strips 4, 4<SP>1</SP> may be flexible as stated or rigid but secured to the surface 1 by a flexible or inflatable or pivotal joint. The specification states that the invention may be applied to ceilings, floorings, partitions, windows, tents, clothing, protective coverings; hoods, &c.
Patent GB-1049305-A (GB)
Title: Coil-spring assembly
IPC: A47C27/07
Filed: 1965-07-26
Abstract: 1,049,305. Spring upholstery. M. LEVINE. July 26, 1965, No. 31756/65. Heading A4M. A spring assembly comprises a plurality of parallel rows of upright coil springs 1-6, stiff rectangular upper and lower wire frames 20, 21 surrounding the assembly and connected to the border springs, tie wires 11 extending between front and rear frame sides 20b, 20c and having bights 10a, 10b 11m tying together juxtaposed springs of each row, and a suspension wire T for each row which is secured under tension to opposite sides 20, 20a of the frame, the suspension wire T being interengaged with the tie wires 11 and acting as a spring to co-operate with the coil springs to maintain the flat upper surface of the spring assembly. The bights 10a, 10b engage the end convolutions of adjacent springs in a row with bights 11m engaged over the suspension wires T.
Patent GB-1214215-A (GB)
Title: Improvements in and relating to oxygen or thermic lances
Inventor: RUMBOL EDWIN VINCENT
IPC: E21B7/14
Filed: 1968-07-03
Abstract: 1,214,215. Thermic lances. THERMIC LANCES Ltd. 16 June, 1969 [3 July, 1968], No. 31817/68. Heading F4T. In a method of producing a thermic lance, an iron or mild steel tube is formed from a strip which is either joined by a longitudinal welded seam or wound in helical fashion and welded, and iron or hard drawn mild steel wires are held firmly and accurately therein by restricting the width of the tube along at least a major portion of its length e.g. by rolling, swaging or drawing. The wires are introduced either during or after manufacture of the unrestricted tube.
Patent GB-899258-A (GB)
Title: Compensation of unbalance in rotary machines
IPC: B04B9/14
Filed: 1958-10-06
Abstract: 899,258. Spin-driers. LEPPER, W. Oct. 6, 1958 [Oct. 19, 1957; Nov. 30, 1957], No. 31858/58. Class 34(2) Out-of-balance forces transmitted to the bearings of a rotating washing and spin-drying basket are at least partly compensated by opposing forces produced by a rotating counterweight which moves into an out-of-balance position in dependence upon that of the basket. The perforated basket 4, Fig. 1, is suspended within a tub 3 by the shorter arms of levers 8 pivoted to brackets 10 secured to the tub. The basket is held from the tub wall by resiliently yieldable elements 7 and counterweight annular ring masses 11 are pivotally suspended from the longer arms of the levers such that when out-of-balance occurs in the rotating basket causing it to move laterally against some of the elements 7 the levers 8 pivot to thrust the rotating masses 11 into an out-ofbalance compensating position in the opposite direction. In another embodiment a horizontal basket 20, Fig. 5, is suspended within a cage 19 by springs such as 34, Fig. 6, whilst the masses 11 at each end are operatively connected to the basket through levers 8, links 28, 30, and axially adjustable spring-loaded suspension members 22. In a further embodiment a basket 49, Fig. 9, is held within a drum 50 by levers 8 which are fulcrumed on drum flanges 10 and pivotally attached to counterweights 11 and elastically yielding rings 51. In the embodiments of Figs. 1, 5 and 6 the counterweights are ring-shaped plates at each end of the revolving basket whilst the doublearmed levers 8 are located around the peripheral edge of the basket. The same compensating effect may be achieved if only one such lever were pivotally attached to the centre of each end face of the basket and extended in the axial direction with its fulcrum located on the tub 3 or the cage 19 in the axis of revolution thereof, the free end of each lever carrying one counterweight. The provision of a single counterweight may be sufficient if the counterweight is in the form of a cylinder, the shorter and longer lever arms being pivotally attached to the ends of the basket and cylinder, respectively.
Patent GB-428540-A (GB)
Title: Improvements in or relating to armors for cables
IPC: H01B7/22
Filed: 1933-11-15
Abstract: 428,540. Cables. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm, and ELL, B. S. F., Spanga, both in Sweden. Nov. 15, 1933, No. 31871. [Class 36] To enable a lead-sheathed cable, particularly an oil-filled cable, to resist high internal pressures, an armouring is provided, either inside or outside the lead sheath, comprising a large number of bands which are hook-shaped in cross-section and which are wound about the cable at a great pitch so that the bands make an angle of less than 16‹ with the longitudinal direction of the cable. The bands may be wound in a single layer so that the hooks of adjacent bands engage with one another, or they may be wound in two or more layers so that the hooks of the bands in one layer engage with the hooks of the bands in the next layer, the result being that displacement of adjacent bands in a direction transverse to the cable is prevented. Insulation may be provided between the bands, for example, by making the bands of aluminium with oxidized surfaces. An insertion of paper &c. may be provided between the armouring and the lead sheath and an outer armouring, for example, of bands or wires wound at a smaller pitch, may be provided to protect the cable against wear. Fig. 1 shows a cable comprising a conductor 1 having a longitudinal oil channel 2 which communicates with a space 3 filled with insulating material impregnated with oil and which is surrounded by a lead sheath 4. The armouring outside the lead sheath comprises an inner layer of U-shaped bands 5 wound about the cable at a great pitch with their flanges directed outwardly and an outer layer of similar bands 6 wound with their flanges directed inwardly so that the flanges of the bands 5 and 6 engage. The abutting edges 8 and 9 of the bands 5 and 6 respectively may be sharp, as shown, or may be rounded to form shallow helical grooves on the inside and outside of the armouring. The abutting surfaces 7 may be provided with grooves to accommodate key - bands of rectangular or circular crosssection to prevent slipping of the bands in a radial direction. Alternative methods of preventing radial slip are shown in Figs. 3 and 4. In Fig. 3 each band has a wedge-shaped flange 10 intermediate its hook flanges so that when the bands are wound the flanges 10 cause deformation of the hook flanges as shown. In Fig. 4 the bands 5 of the inner layer are formed with the hook surfaces 11 inclined, the flanges of the outer bands 6 being bent round these surfaces when the outer layer is wound. In the form shown in Fig. 8, the outer bands also engage with one another by means of longitudinally extending projections 14 and grooves 15. As shown in Fig. 4, the bands in the outer layer need not abut against one another to form a continuous surface. An armouring comprising a single layer of bands is shown in Fig. 9, the bands 16 being substantially S-shaped in cross-section.
Patent GB-148095-A (GB)
Title: Improvements in electrolytic apparatus for the direct production of hypochlorites
IPC: C25B9/17
Filed: 1919-12-19
Abstract: 148,095. Pestalozza, P. Dec. 19, 1919. Cells; supporting electrodes; electrolytes, treating non - chemically; hypochlorites, obtaining.-A vat for the direct production of hypochlorites is divided by transverse partitions 3 having staggered openings 3<1> in their upper parts for passage of the chloride solution, each partition carrying a bipolar element comprising an anode plate in one compartment and two vertical cathode plates 5 having their upper edges at different levels and arranged on opposite sides of the anode 4 in the next compartment. Beyond the higher cathode plate 5, which is situated adjacent the inlet opening 3" in each compartment, is immersed a loop 8<1> from one of a pair of cooling-pipes carried along the vats. Circulation of the liquid between the electrodes is thus promoted. The cell with its integral partitions is preferably moulded under, high pressure from a mixture of cement, asbestos, and water, and, after drying, is impregnated, while hot, with heavy oils or paraffin. A bath of paraffin and a neutral oil at 200 C, is suitable. Each partition has a central slot in which slides a block 6 of similar material carrying the bipolar electrode element, or the single elements at the ends of the cell. The anodes may be of platinum, and the cathodes of carbon or graphite. The cooling- pipes may be of glass, with rubber connectors at intervals.